Headlight Patents (Class 362/507)
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Patent number: 6592239Abstract: A vehicular lamp with improved appearance quality (i.e., having no burrs or the like) around the joint interface between a front lens and a lamp body, and sufficient joint strength even in regions where the joint interface shape changes three dimensionally. A sealing leg, formed on the front lens, has a tip face which abuts and is joined by laser welding to a receiving face formed on the lamp body. To carry out the welding operation, a laser beam is irradiated from the front side of the front lens to the receiving face through the sealing leg. Therefore, even if the laser beam enters diagonally, it can be reflected internally by both side faces of the sealing leg so that the beam reliably reaches the tip face. As a result, the energy of the laser beam is not reduced, making it possible to efficiently heat the lamp body.Type: GrantFiled: April 12, 2000Date of Patent: July 15, 2003Assignee: Koito Manufacturing Co., Ltd.Inventors: Kazuo Akiyama, Fujihiko Sugiyama
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Publication number: 20030103358Abstract: A lighting unit for a low beam is provided with a movable shade constituted to take a shielding position in which a part of light incident on a reflector from a light source is shielded and a shielding release position in which the shielding is released. When a vehicle speed exceeds a predetermined set vehicle speed, or when a vehicle turns toward the opposite lane side, the movable shade is moved to the shielding release position, thereby adding auxiliary light distribution patterns P(B) and P(C) having cutoff lines CLb and CLc above cutoff lines CL1 and CL2 of a low beam distribution pattern P(L) to the low beam distribution pattern P(L) to carry out beam irradiation. Thus, the visibility of a distant road is enhanced.Type: ApplicationFiled: December 3, 2002Publication date: June 5, 2003Inventors: Masashi Tatsukawa, Toshiyuki Kinouchi
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Patent number: 6554461Abstract: A vehicle lamp including a synthetic resin lamp body, a bracket that projects from an exterior surface of the lamp body and functions as a fixation portion to be fixed to a vehicle body, an adjacent lamp and the like, and a boss which is provided near the bracket and is used for attaching a replacement bracket thereon so as to replace the bracket when the bracket is damaged, the boss having a boss hole formed therein so that a tapping screw is pressed and screwed into the boss hole; and in this vehicle lamp, the boss hole is a shallow recess, and its bore diameter gradually increases toward its opening end.Type: GrantFiled: April 3, 2002Date of Patent: April 29, 2003Assignee: Koito Manufacturing Co., Ltd.Inventors: Kenji Yamada, Norihiro Nishitani
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Patent number: 6547427Abstract: The invention relates to a lighting system for a motor vehicle, said lighting system comprising a frame (20) suitable for supporting at least one lighting lamp (4, 5), a housing containing the frame and its lamp, and a structural piece (3) of the vehicle, which piece is suitable internally for supporting parts of the vehicle, and externally for supporting elements of the bodywork of the vehicle. The housing is an integral part of the structural piece (3), which, for this purpose, is provided with a bowl-shaped recess that can receive the frame and its lamp directly.Type: GrantFiled: June 22, 2000Date of Patent: April 15, 2003Assignee: Compagnie Plastic OmniumInventors: Hugues Cheron, Arnold Fayt, Fabien Delwal
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Publication number: 20030063477Abstract: An integrated light and accessory assembly for a vehicle is disclosed. The assembly includes at least one lamp for illumination of a vehicle, and also includes reflective, conductive and insulative portions inside a housing, and a module for controlling or accessorizing the assembly. Also disclosed is a method of manufacturing the assembly. The method includes providing materials for molding or shaping the components of the assembly, selectively etching conductive materials, molding the materials into a desired configuration, connecting a lamp and an accessory module to the conductive portions, and enclosing the components in a housing. A portion of the module may be removed for emergency lighting.Type: ApplicationFiled: September 28, 2001Publication date: April 3, 2003Applicant: Ford Motor Co.Inventors: Walter Kuzma Stepanenko, Jay DeAvis Baker, Lawrence LeRoy Kneisel, Richard Keith McMillan, Brenda Joyce Nation, Cindy Maria Rutyna, Charles Frederick Schweitzer, Peter Langer
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Patent number: 6540388Abstract: A mounting structure for mounting a discharge lamp lighting device is arranged to directly connect a discharge lamp provided in a headlight unit to a connector provided in the discharge lamp lighting device. The headlight unit includes a reflector, and the mounting structure comprises a holder for holding the discharge lamp, wherein the holder includes a holder securing portion directly connected to the reflector and is secured to the reflector via the holder securing portion. The discharge lamp is secured to the reflector via the holder. The mounting structure further comprises a securing member directly connected to the reflector for securing the discharge lamp lighting device to the reflector. The holder and the securing member are separated from each other and the discharge lamp lighting device is secured to the reflector via the securing member.Type: GrantFiled: February 16, 2001Date of Patent: April 1, 2003Assignee: Denso CorporationInventors: Kenji Aida, Hiroaki Okuchi, Masamichi Ishikawa
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Patent number: 6536920Abstract: A vehicle headlamp including a lamp body, a front cover that covers the front of the lamp body, a reflector disposed in the lamp body, a discharge bulb supported by the reflector, a lighting circuit assembly formed by housing a ballast circuit for lighting the discharge bulb and a starting circuit in a casing, and a power feeding connector connected to the lighting circuit assembly by a cord and removably coupled to the connector portion of the discharge bulb. A lighting circuit case that houses the lighting circuit assembly is integrally disposed on the lamp body with a connecting portion in between, the lighting circuit case is provided on the side of the lamp body, and the connecting portion is in a shape of a lateral U in vertical cross-section so as to allow the power feeding connector to pass through.Type: GrantFiled: November 29, 2001Date of Patent: March 25, 2003Assignee: Koito Manufacturing Co., Ltd.Inventors: Tetsumasa Imachi, Masahiro Masuda, Tutomu Naito
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Patent number: 6533439Abstract: An indicator light for a motor vehicle includes a divider screen adapted to divide a light beam into a plurality of elementary light beams which are then added together downstream of the dividing screen. A first coloring means, for coloring some of the elementary light beams, is located at a distance from the divider screen. The light unit includes a second coloring means adapted to color at least some of the elementary light beams, the second coloring means being spaced away from the divider screen and the first coloring means.Type: GrantFiled: May 13, 1998Date of Patent: March 18, 2003Assignee: Valeo VisionInventors: Vincent Duflos, RĂ©gis Duplessy, Benoist Fleury, Vincent Godbillon
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Patent number: 6520659Abstract: A vehicular headlamp apparatus with a washing function for washing the transparent member of the headlamp apparatus, comprising a washing unit for washing the surface of the transparent member and a light irradiation unit installed in a lamp housing comprised of the transparent member and a lamp body. The nozzle section of the washing unit that includes an injection nozzle and horizontally movable has a cover assembly. When washing the injection nozzle is moved to project out of the lamp apparatus and injects washing liquid to the transparent member. When washing is not performed, the injection nozzle is retracted inside the lamp apparatus and the decoration cover assembly forms the front surface of the headlamp apparatus together with its transparent member.Type: GrantFiled: February 23, 2001Date of Patent: February 18, 2003Assignee: Koito Manufacturing Co., Ltd.Inventors: Masaru Nishiyama, Yasuo Teranishi
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Publication number: 20030031022Abstract: In a headlamp for a vehicle, a lighting control circuit unit is provided in a lamp housing. The lighting control circuit unit is fixed to a holder with screws and the holder is fixed to a rear surface of a reflector with screws. A discharge lamp bulb is held on the reflector. The discharge lamp bulb is directly connected to the lighting control circuit unit. The lighting control circuit unit is removable through an opening of the lamp housing in a state that the discharge lamp bulb is held on the reflector. Also, the discharge lamp bulb is exchangeable through the opening.Type: ApplicationFiled: August 5, 2002Publication date: February 13, 2003Inventors: Hironao Yamaguchi, Koichi Toyama
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Publication number: 20030026107Abstract: An irradiating direction control device 1 of a lamp 7 for a vehicle carries out an operation for a vehicle attitude based on detection information obtained by vehicle height detecting means 2 and changes the irradiating direction of the lamp according to the vehicle attitude. Nonvolatile storage means 4 is caused to store data indicate of an actual vehicle height value in the reference state of the vehicle attitude or a difference between the actual vehicle height value and a vehicle height value for a vehicle design, thereby calculating the tilt of the vehicle attitude based on vehicle height data corrected by the stored data at time of irradiation control and controlling the irradiating direction of the lamp correspondingly.Type: ApplicationFiled: July 31, 2002Publication date: February 6, 2003Applicant: KOITO MANUFACTURING CO., LTD.Inventors: Atsushi Toda, Makoto Izawa
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Publication number: 20030007363Abstract: An infrared radiating lamp which dilutes the red light emitted from the front lens of the lamp by causing a peripheral portion of the lens to emit white light or causing a small amount of white light to pass through a generally central portion of the lens so that the lamp will not be mistakenly recognized as a tail lamp or a stop lamp. The lamp includes a lamp body, a lens attached to a front opening portion of the lamp body and which cooperates with the lamp body to define a lamp chamber, a reflector provided at an inner side of the lamp body, a light source provided forward of the reflector, and an infrared transmitting film that reflects a visible light component and transmits an infrared component. A region having no infrared transmitting film is provided at an outer periphery of the infrared transmitting film.Type: ApplicationFiled: July 2, 2002Publication date: January 9, 2003Applicant: KOITO MANUFACTURING CO., LTD.Inventor: Seiichiro Yagi
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Patent number: 6502972Abstract: A vehicular headlamp has a reflector which is supported at not less than three points through respective link members in relation to the lamp body in a tiltable manner. The reflector is molded by molding of a synthetic resin material. At least one of the link members is supported by an attachment piece which is integrally formed with and protrudes outward from a location where the opening periphery of a reflective surface of the reflector as viewed from the blanking direction during molding of the reflector.Type: GrantFiled: October 1, 1998Date of Patent: January 7, 2003Assignee: Koito Manufacturing Co., Ltd.Inventor: Masao Matsubara
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Publication number: 20020181245Abstract: A lamp unit for a motor vehicle includes a light source, a substantially plano-convex projection lens, and an identification symbol. The projection lens has the configuration of a spherical segment and a central region, and the identification symbol is disposed in the central region of the planar side of the projection lens. The planar side of the lens faces the light source. A method of making a lamp unit for a motor vehicle includes disposing an identification symbol in a central region of a planar side of a substantially plano-convex projection lens of the lamp unit, wherein the planar side of the lens faces a light source.Type: ApplicationFiled: May 1, 2002Publication date: December 5, 2002Applicant: DaimlerChrysler AGInventors: Hans-Dieter Futschik, Norbert Weber, Walter Nuber
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Publication number: 20020181241Abstract: A vehicle lamp comprises at least one light source in the form of a light emitting diode. To improve dissipation of the waste heat generated in the series resistor the series resistor includes a flat resistor portion which can be so arranged that it is in areal heat-conducting contact with a portion of the vehicle to which the lamp is fitted.Type: ApplicationFiled: May 28, 2002Publication date: December 5, 2002Applicant: FER Fahrzeugelektrik GmbHInventor: Martin Tietze
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Patent number: 6478456Abstract: Headlamp, in particular for motor vehicles, with a headlamp housing that can be inserted into a housing receiver from the front, whereby—in the event of a defined impact in a longitudinal direction that exceeds a specific force opposite to the driving direction—the headlamp housing is displaced within the housing receiver a predetermined energy-absorption path.Type: GrantFiled: June 9, 2000Date of Patent: November 12, 2002Assignee: Hella KG Hueck & Co.Inventors: Henning Eichhorn, Christian Huether, Dirk Kersting, Roland Lachmayer, Bernd Mennen
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Patent number: 6471386Abstract: This invention relates to a mounting structure of automobile headlamp which can cope with the current Safety Rule for Pedestrians in Europe by properly absorbing the impact during automobile accident with inserting and mounting a bellow spring to conventional mounting boss divided by two and a bellows spring bracket to conventional bolt and snap fitting pin.Type: GrantFiled: December 29, 2000Date of Patent: October 29, 2002Assignee: Hyundai Motor CompanyInventor: Se Wook Oh
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Publication number: 20020145881Abstract: A vehicle lamp including a synthetic resin lamp body, a bracket that projects from an exterior surface of the lamp body and functions as a fixation portion to be fixed to a vehicle body, an adjacent lamp and the like, and a boss which is provided near the bracket and is used for attaching a replacement bracket thereon so as to replace the bracket when the bracket is damaged, the boss having a boss hole formed therein so that a tapping screw is pressed and screwed into the boss hole; and in this vehicle lamp, the boss hole is a shallow recess, and its bore diameter gradually increases toward its opening end.Type: ApplicationFiled: April 3, 2002Publication date: October 10, 2002Applicant: KOITO MANUFACTURING CO., LTD.Inventors: Kenji Yamada, Norihiro Nishitani
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Publication number: 20020145880Abstract: A motor vehicle has left and right hand headlights, each with a reflector having a complex surface with a lamp fitted within the reflector. Each lamp has a dipped or passing beam filament and a main beam filament. The position of the main beam filament is defined by its angular position with respect to a position of origin vertically below the main axis of the lamp, on a circle centered on the main axis, the main beam filament being oriented positively in the trigonometric direction looking forward along the main axis. The angular position of each main beam filament is in the range between −90° and +90°, and is different for each headlight.Type: ApplicationFiled: March 12, 2002Publication date: October 10, 2002Inventor: Regis Nouet
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Publication number: 20020136022Abstract: A shape of a vertical cross section and a shape of a horizontal cross section in a lens are formed in a convex shape. Accordingly, even when a prism is not formed, alight transmitting through the lens is largely refracted and an interior section is hard to be visible. As a result, it is not necessary to finish a surface of a reflection surface of a reflector so as to have an optical performance equal to or more than an optical performance required for reflection with taking an appearance into consideration, and a working operation can be easily executed in comparison with the conventional one.Type: ApplicationFiled: January 22, 2002Publication date: September 26, 2002Applicant: Ichikoh Industries, Ltd.Inventor: Yutaka Nakata
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Patent number: 6447153Abstract: A reflector is for reflecting light rays from the light source bulb to set up a brightness intensity distribution pattern. The reflector is separated in a movable reflector part and a fixed reflector part. The movable reflector part has a first separated edge. The fixed part has a second separated edge in opposition to the first separated edge. A driving means is for moving the movable reflector part relative to the fixed reflector part to change a brightness intensity distribution pattern of light rays from the light source bulb. The shading flange is for shading an air gap between the first separated edge and the second separated edge.Type: GrantFiled: August 16, 2000Date of Patent: September 10, 2002Assignee: Ichikoh Industries, Ltd.Inventor: Takayuki Kawamura
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Patent number: 6428194Abstract: A headlight for a vehicle operating in accordance with a projection principle has a light source, a reflector, a shield arranged in a beam path of a light reflected by the reflector for producing a bright-dark limit of a light bundle exiting the headlight, a lens through which the light passing on the shield passes, a light-permeable cover member arranged after the lens in a light outlet direction, the cover member having a region which deviates the passing light upwardly, and a screening device arranged between the shield and the cover member and formed so that at least a part of the light passing on the screen which would pass through the region of the cover member is screened.Type: GrantFiled: August 11, 1999Date of Patent: August 6, 2002Assignee: Robert Bosch GmbHInventors: Horst Oschmann, Hartmut Stephan
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Patent number: 6416202Abstract: An outer peripheral wall 14b1 of an attachment groove 14b of a lamp body 14 is branched for vard into two branch walls 14b1A, 14b1B in the portion located on the side of a right end 16A of a front lens 16. Thus, the inner branch wall 14b1A can be set to have such a relatively small open angle that can prevent a sealant 20 from running off onto its outer periphery upon insertion of an attachment leg 16a into the attachment groove 14b, whereas the outer branch wall 14b1B can be set to have a large open angle according to the requirements of the lamp design and the like.Type: GrantFiled: November 2, 2000Date of Patent: July 9, 2002Assignee: Koito Manufacturing Co., Ltd.Inventors: Susumu Masuda, Yasuaki Funada
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Publication number: 20020075694Abstract: A designing method of a reflective surface RS according to the present invention has a step of generating an XY curve Q on an XY plane including the X-axis (optical axis) and Y-axis; a step of, at each of a plurality of base points P existing on the XY curve Q, generating an XZ curve R on a plane (UZ plane) including the base point P and being parallel to a reflection direction of light at the base point P and normal to the XY plane; and a step of generating a surface shape of the reflective surface RS, based on the XY curve Q and the plurality of XZ curves R. This substantiates a method of designing a reflective surface of a reflector in a vehicle lamp with improved controllability of a light distribution pattern and with improved efficiency of a designing work.Type: ApplicationFiled: December 13, 2001Publication date: June 20, 2002Applicant: KOITO MANUFACTURING CO., LTD.Inventors: Hiroshi Kawashima, Masashi Tatsukawa
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Publication number: 20020067617Abstract: A vehicle headlamp including a lamp body, a front cover that covers the front of the lamp body, a reflector disposed in the lamp body, a discharge bulb supported by the reflector, a lighting circuit assembly formed by housing a ballast circuit for lighting the discharge bulb and a starting circuit in a casing, and a power feeding connector connected to the lighting circuit assembly by a cord and removably coupled to the connector portion of the discharge bulb. A lighting circuit case that houses the lighting circuit assembly is integrally disposed on the lamp body with a connecting portion in between, the lighting circuit case is provided on the side of the lamp body, and the connecting portion is in a shape of a lateral U in vertical cross-section so as to allow the power feeding connector to pass through.Type: ApplicationFiled: November 29, 2001Publication date: June 6, 2002Applicant: KOITO MANUFACTURING CO., LTD.Inventors: Tetsumasa Imachi, Masahiro Masuda, Tutomu Naito
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Patent number: 6394635Abstract: The present invention provides a plastic cover plate for motor vehicle lights, such as motor vehicle headlights. The plastic cover plate is characterized in that the plate has, on the surface facing towards the light, a transparent coating to prevent specks from forming through the non-homogeneous deposition of dust.Type: GrantFiled: May 31, 2000Date of Patent: May 28, 2002Assignee: Hella KG Hueck & Co.Inventors: Ulrich Temme, Rudolf Zehe
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Publication number: 20020057577Abstract: A headlight for a vehicle operating in accordance with a projection principle has a light source, a reflector, a shield arranged in a beam path of a light reflected by the reflector for producing a bright-dark limit of a light bundle exiting the headlight, a lens through which the light passing on the shield passes, a light-permeable cover member arranged after the lens in a light outlet direction, the cover member having a region which deviates the passing light upwardly, and a screening device arranged between the shield and the cover member and formed so that at least a part of the light passing on the screen which would pass through the region of the cover member is screened.Type: ApplicationFiled: August 11, 1999Publication date: May 16, 2002Inventors: HORST OSCHMANN, HARTMUT STEPHAN
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Patent number: 6379030Abstract: An external aiming headlamp assembly including a plastic housing supported on a vehicle body in a headlamp port for universal articulation to aim the headlamp assembly and an adjustable flexible seal on the plastic housing. The flexible seal includes an outer lip bearing against the headlamp port, an inner lip flush against an outside surface of the plastic housing, and a convex web exposed in a clearance gap between headlamp port and the plastic housing. Posts on the plastic housing protrude through slots in the inner lip and include barbs which prevent dislodgment of the inner lip. The slots in an adjustable fraction of the inner lip are elongated and cooperate with the corresponding posts in guiding the adjustable fraction of the inner lip for translation through a range of positions to vary the exposure of the convex web. The edges of the elongated slots are interrupted by notches separated by flexible gates.Type: GrantFiled: November 13, 2000Date of Patent: April 30, 2002Assignee: General Motors CorporationInventors: James Joseph Jankowski, Donald Kevin Porter
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Patent number: 6354722Abstract: A vehicle headlight has a cam mechanism for displacing the reflector and the light source of the headlight with respect to each other, between two relative positions in which the headlight emits two different types of light beam. The cam mechanism comprises a first cam member and a second cam member, and it converts rotation of the first cam member about an axis of rotation into a first straight line motion of the second cam member. The first straight line motion is collinear with the axis of rotation.Type: GrantFiled: February 22, 2000Date of Patent: March 12, 2002Assignee: Valeo VisionInventors: Cesar Lopez Montenegro, Jean Paul Ravier
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Publication number: 20020024819Abstract: In first to third support wires (12, 13, 14) connected to a low beam filament L and a high beam filament H, which are arranged in the light source bulb 9, a bent portion 13a is formed by bending the second support wire 13 from a curved portion 13c towards the first support wire at an obtuse angle &thgr;2, and each rear lead Lb, Hb of the low beam filament L and the high beam filament H is connected to the bent portion 13a.Type: ApplicationFiled: August 23, 2001Publication date: February 28, 2002Applicant: ICHIKOH INDUSTRIES, LTD.Inventors: Akihito Inoue, Yasuhiro Okubo
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Patent number: 6334702Abstract: A motor vehicle headlight includes a first, generally concave, reflector and a lamp mounted in the first reflector, the lamp connectable to a light source. A second reflector is housed within the concavity of the first reflector. The second reflector is moveable between a first position, wherein the headlight reflects a wide beam, and a second position, wherein the headlight reflects a narrow beam. The second reflector may be in communication with a device responsive to the speed of the vehicle in which the headlight is mounted, and accordingly, the position of the second reflector may be based on the speed of the vehicle.Type: GrantFiled: April 8, 1999Date of Patent: January 1, 2002Assignee: Valeo VisionInventor: Pierre Albou
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Patent number: 6331068Abstract: A lamp system for a vehicle having an impact-absorbing bumper that is designed to be mounted substantially flush with the surrounding vehicle body panels and bumper, and capable of deflecting with the stroke of the impact-absorbing bumper during impact to obviate the need for the lamp to pivot about an anchor point or to be mechanically displaceable with additional hardware. The lamp system is preferably formed from resilient, impact-resistant material, with a deformable resilient deflection member selectively located between the lens and the housing, between the inner lens and the outer lens in a dual lens system, or between the housing and the body of the vehicle or a member attached thereto. Further, the resilient deflection member may be the lens itself. The material for the resilient deflection member must have a yield strength that is adequate to sustain a predetermined degree of deformation, corresponding to the amount of deflection required to deflect with the bumper stroke.Type: GrantFiled: January 25, 2000Date of Patent: December 18, 2001Assignee: Lacks Industries, Inc.Inventor: Lee A. Chase
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Patent number: 6327095Abstract: To provide a vehicle lamp having a high quality lens and a method for manufacturing the same and make it possible to reliably separate a pre-molded lens member while being securely held in the movable die during composite lens molding in a multi-color molding process.Type: GrantFiled: March 8, 2000Date of Patent: December 4, 2001Assignee: Koito Manufacturing Co., Ltd.Inventors: Hiroyuki Tamai, Hideo Taki
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Patent number: 6325529Abstract: A vehicular headlamp with a shade that even though the reflective surface of a reflector is constituted of a plurality of reflective elements, the generation of stray light is minimized while a decrease in utilization luminous flux is reduced to the minimum. The reflective surface (20a) of a reflector (20) is constituted of a plurality of reflective elements 20s) that are the divided rectangular segments each of which is longer than is wide. The upper end edge B of the reflective surface (20a) has a curved configuration having irregularities respectively in reflective elements (20s).Type: GrantFiled: November 12, 1999Date of Patent: December 4, 2001Assignee: Koito Manufacturing, Inc., Ltd.Inventor: Takaya Ito
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Patent number: 6318883Abstract: A lamp for a vehicle is described that incorporates a lamp body to which a front lens is joined by a sealing member. The sealing member is made of a low-adhesive hot melt in the gel state which causes surface exfoliation when the front lens is separated from the lamp body. This makes it possible to easily attach or detach the front lens and prevent the front lens, the lamp body, and the sealing member from being damaged during a separating operation. Since the elastic repulsion force of the sealing member is small, threaded fasteners are not required for fastening the front lens to the lamp body. Instead, only hook fasteners need be used. Therefore, the structure of the lamp is simplified and the workability in the process for assembling the lamp is improved.Type: GrantFiled: August 25, 1999Date of Patent: November 20, 2001Assignee: Koito Manufacturing Co., Ltd.Inventors: Fumihiko Sugiyama, Haruo Otani, Michihiko suzuki, Kazuhiro Yamazaki
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Patent number: 6315438Abstract: A vehicle headlamp of a movable reflector type comprising a lamp body, a reflector having a lamp, and an aiming mechanism disposed between the lamp body and the reflector and structured so as to support the reflector and adjust the angle of the reflector with respect to the lamp body when aiming screws mounted in screw insertion holes of the lamp body are turned; and a portion of each of the aiming screws which is installed in and supported by the screw insertion hole is made of plastic, and annular elastic waterproofing ribs are formed on the plastic portion of the aiming screw so as to be brought into a sliding contact with the inner surface of the screw insertion hole, thus securing a waterproofing capability for the vehicle headlamp.Type: GrantFiled: August 31, 1999Date of Patent: November 13, 2001Assignee: Koito Manufacturing Co., Ltd.Inventors: Katutada Shirai, Takashi Matsunaga
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Patent number: 6312147Abstract: A headlight for a vehicle operating in a projection principle has a light source, a reflector reflecting a light emitted by the light source, a lens arranged in a course of light reflected by the reflector, a first shade device located between the reflector and the lens and changeable between at least one first condition for a first operational position of the headlight and at least one second condition for a second operational position of the headlight, the first shade device in the first condition screening a part of the light reflected by the reflector and producing a bright-dark limit of a light bundle exiting the headlight, and in the second condition screening at least only a smaller part of a light reflected by the reflector than in the first condition, and a further shade device arranged in a direction of an optical axis offset relative to the first shade device and changeable between at least one first condition and at least one second condition, the further shade device in the first condition screenType: GrantFiled: December 21, 1998Date of Patent: November 6, 2001Assignee: Robert Bosch GmbHInventor: Heike Eichler
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Patent number: 6290379Abstract: An aiming mechanism of a headlamp for an automobile, comprises: a lamp housing which is mounted on a vehicle body; a headlamp unit supported tiltably about a tilting fulcrum provided in front of the lamp housing; a hollow cylindrical nut member supported rotatably about an axis by a bearing provided in the lamp housing; and an aiming screw which is threadedly engaged with the nut member, extends forward, is prevented from rotating with respect to the headlamp unit, and is adapted to advance and retract in an axial direction to tilt the headlamp unit connected to a forward end thereof as the nut member is rotated, wherein a crown-shaped gear capable of meshing with teeth of a screwdriver disposed in a direction perpendicular to the aiming screw is formed integrally on the nut member, and at least two screwdriver guides for guiding the screwdriver are provided in vicinities of the bearing.Type: GrantFiled: June 11, 1998Date of Patent: September 18, 2001Assignee: Koito Manufacturing Co., Ltd.Inventors: Masahito Iwasaki, Masataka Chouji
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Publication number: 20010019482Abstract: An infrared-ray radiating lamp which is prevented from being mistaken for a tail lamp or a stop lamp by ensuring that not only infrared rays but also visible rays are emanated from a front lens simultaneously. The lamp includes a lighting chamber defined by a lamp body and a front lens, a reflector disposed in the lighting chamber, and infrared-ray radiation means and visible-ray radiation means disposed in front of the reflector in the lighting chamber. The infrared rays radiated from the infrared-ray radiation means and the visible rays radiated from the visible-ray radiation means are emanated from the front lens simultaneously when the lamp is lit. Thus, the rays distributed by the lamp include both red infrared rays and white visible rays, and therefore a red color is not particularly noticeable. Thus, the infrared-ray radiating lamp when lit is not mistaken for a tail lamp or a stop lamp.Type: ApplicationFiled: February 15, 2001Publication date: September 6, 2001Inventors: Shoji Kobayashi, Atsushi Sugimoto, Takashi Inoue
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Patent number: 6280064Abstract: The reflective surface of a reflector 16 is divided through steps into a plurality of vertically elongated reflective surface elements. In each of those reflective surface elements, the light incidence section to which the output light of a light source bulb is applied is made up a convex cylindrical curved surface and a concave cylindrical curved surface which are arranged substantially in parallel with the step adjacent to the light incidence section. Accordingly, when the lamp is turned on, and the reflector is observed from the front, the light incidence sections function as follows; that is, the apex portions of the cylindrical curves surfaces look glittered as bright sections. Therefore, the reflective surface looks more sparkling.Type: GrantFiled: October 14, 1998Date of Patent: August 28, 2001Assignee: Koito Manufacturing Co., Ltd.Inventors: Osamu Sato, Kazunori Natsume
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Patent number: 6270615Abstract: In manufacturing a vehicle lamp by a hot plate melt-bonding method whereby a lamp body comprising thermoplastic resin is melted by pressing onto it a heated hot plate, then joining the lamp body and a lamp lens by press-fixing the melted part onto the lamp lens, improvement is effected in respect of thread drawing of the resin constituting the lamp body by employing a lamp body that is molded of a resin composition (C) as chief constituent whereof a total of 100 weight parts consist of 80˜5 weight parts of a specified graft copolymer (A) obtained by graft polymerization of an &agr;,&bgr;-unsaturated acid glycidyl ester compound and 20˜95 weight parts of vinyl copolymer (B).Type: GrantFiled: November 24, 1998Date of Patent: August 7, 2001Assignee: Kaneka CorporationInventors: Kenji Nishimoto, Yoshihiko Hashimoto
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Patent number: 6270241Abstract: In an assembly of at least one headlight and an indicator light for a motor vehicle, the headlight includes a lamp which is mounted in a reflector, and the indicator light, which is situated adjacent to the headlight, includes a lamp and reflective means for flux recuperation. The headlight and the indicator light also have adjacent lenses. The reflective means comprise a first reflector cooperating with the lamp of the indicator light, and a second reflector, the lamp and the first reflector of the indicator light being disposed behind the reflector of the headlight, and the second reflector of the indicator light is disposed in line with the lens of the indicator light.Type: GrantFiled: February 23, 1999Date of Patent: August 7, 2001Assignee: Valeo VisionInventors: Patrice Collot, Jose Ordonez, Vincent Godbillon, Jean Rit
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Publication number: 20010010635Abstract: A vehicle lamp in which a lighting chamber is composed of a body and a lens covering an opening face of the body, the vehicle lamp includes: a first reflector, which is arranged in the lighting chamber, for reflecting the rays of a first electric bulb in substantially the front direction; a second electric bulb arranged at the rear of the first reflector so that the second electric bulb cannot be seen from the front direction; and a second reflector for reflecting the rays of the second electric bulb.Type: ApplicationFiled: January 29, 2001Publication date: August 2, 2001Inventor: Yoshimasa Gotou
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Patent number: 6256909Abstract: An external electrical connector for connecting one or more components of a snowplow blade unit. The electrical connector includes two housing components that are securable together. Each housing component includes an interface end and a coupling end. The coupling ends of the two housing components are designed to be connect together to form an electrical connection. At least one of the interface ends includes at least one electrical connection interface that is designed to form an electrical connection with at least one external snowplow blade component. One of the housings components is secured to a component of said snowplow blade unit. Protection caps and housing holders are used to protect the parts of the housings when the housings are disconnected from one another.Type: GrantFiled: September 22, 2000Date of Patent: July 10, 2001Assignee: The Louis Berkman CompanyInventors: James A. Kost, Tim K. Howell
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Patent number: 6250790Abstract: A motor vehicle headlight, in particular a foglight, has a lamp which is mounted with a reflector, together with a cover lens. The lamp has mounting means, such as an end cap, for engagement in a plane at right angles to the optical axis of the reflector. The reflector is made of injection moulded plastics, and is stripped from the mould in a direction parallel to the optical axis. The reflector comprises a base portion and at least one adjacent further portion. The further portion has a lamp hole formed through it, and an external surface of a wall of the reflector surrounding the lamp hole makes a rake angle with the direction of stripping the reflector from the mould. Between this external surface and the mounting means of the lamp itself, adapter means have surfaces for engagement by the mounting means of the lamp in a plane parallel to the optical axis.Type: GrantFiled: August 31, 1999Date of Patent: June 26, 2001Assignee: Valeo VisionInventor: Maurice Montet
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Patent number: 6231220Abstract: A vehicle lamp having an aiming mechanism, in which a spherical pivot and a ball seat can readily be formed with great accuracy by reducing the number of parts and assembling steps. A fulcrum portion 7 of the aiming mechanism in a vehicle lamp includes a spherical pivot 10 formed integrally with a reflector 3, and a ball seat 20 formed integrally with a lamp body 1, which is used for receiving the spherical pivot 10. The spherical pivot 10 which has a spherical portion 12 and a strut portion 13 and is projected from the reflector 3 in a direction substantially perpendicular to the mold-parting direction when the reflector 3 is molded, does not require sliders for use in molding the spherical pivot. Moreover, the ball seat 20 includes a curved surface groove portion 21 and a pair of ball holding-down plates 22 with the spherical portion 12 of the spherical pivot 10 held therebetween.Type: GrantFiled: August 11, 1999Date of Patent: May 15, 2001Assignee: Koito Manufacturing Co., Ltd.Inventors: Yuuzi Shibuya, Hidetsugu Yamamoto
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Patent number: 6210024Abstract: A vehicle lamp such that a bulb structurally integrating a bulb body with a plastic bulb socket is fixed and held in a bulb fitting hole in the rear top portion of a container-like metal reflector in a lamp chamber by a plastic socket fixture. In the vehicle lamp, the reflector is provided with convection-current forming holes and an air convention current generated between the inside and outside of the reflector promotes the heat radiating action of the reflector via the convection-current forming holes. Furthermore, a decrease in the light receiving area of the reflector to an extent equivalent to an area corresponding to the convection-current forming holes reduces heat deriving from direct and radiant heat transmitted to the reflector to that extent. Thus, the reflector is restrained from being heated to high temperatures.Type: GrantFiled: October 2, 1998Date of Patent: April 3, 2001Assignee: Koito Manufacturing Co., Ltd.Inventor: Hiroshi Shida
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Patent number: 6199817Abstract: A locking element (30) is arranged slidable between an unlocked position and locked position on the lighting unit (10). An operating element (58) is rotatably mounted on the lighting unit (10). The operating element (58) is coupled with the locking element (30) by means of an eccentrically mounted finger (69) on it, so that a rotational motion of the operating element (58) is converted into a sliding motion of the locking element (30). A pin (20) is arranged on the vehicle part (12) on which the locking element (30) is lockable for securing the lighting unit (10). The operating element (58) allows the locking element (30) to be locked on the pin (20) when it is not directly accessible.Type: GrantFiled: April 22, 1999Date of Patent: March 13, 2001Assignee: Robert Bosch GmbHInventors: Klaus Schmickl, Dietmar Schoenettin
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Patent number: 6190030Abstract: A headlamp and/or taillamp system having an impact-absorbing bumper that is designed to be mounted substantially flush with the surrounding vehicle body panels and bumper, while also being capable of deflecting with the stroke of the impact-absorbing bumper during impact to obviate the need for the headlamp and/or taillamp to pivot about an anchor point or to be mechanically displaceable with additional hardware. The headlamp and/or taillamp is preferably formed from resilient, impact resistant material, such as a high impact plastic, in combination with a deformable flexure member that is located selectively between the lens and the vehicle to resiliently respond to impact. The material for the flexure member must be selected to have a yield strength that is adequate to sustain a predetermined degree of deformation, corresponding to the amount of deflection required to deflect with the bumper stroke.Type: GrantFiled: February 18, 1999Date of Patent: February 20, 2001Assignee: Lacks Industries, Inc.Inventor: Lee A. Chase
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Patent number: 6186650Abstract: A vehicle headlamp includes a beamforming waveguide having an input face, an output face, and a guide portion extending between the input face and the output face. A light source is positioned at the input face of the beamforming waveguide. A lens is positioned at the output face so that light output by the beamforming waveguide passes through the lens to provide vehicle forward illumination. The beamforming waveguide is shaped to generate a desired headlamp beam pattern and can be formed as a block of solid material, a bundle of plastic or glass fibers, or a solid molded wedge that can be moved between two positions to provide both high and low beam forward illumination.Type: GrantFiled: July 2, 1998Date of Patent: February 13, 2001Assignee: Cooper Automotive Products, Inc.Inventors: George R. Hulse, Lloyd Keith Bucher